Three buttons down the front of the shirt allow for a level of breathability that will keep you warm without overheating. For extended sizes, search for style#??2064188. 100% cotton; jersey knit; weight: 6.75 oz.. Snug rib-knit collar and cuffs. Side-seamed construction to minimize twisting. Left chest pocket. Tagless label for an extra level of comfort. Machine wash. Imported. 35481229848 22296600475 K128